I had to roll back drivers to the 275.33 June 1st version because somewhere along the line (I think it was during one of the Windows updates) I lost my capability to run SLI. Hopefully this new driver will resolve that.

Ya I went back also..the 280.26 was causing my system to be unstable and I heard they were actually destroying peoples video cards..I haven't had a problem since the rollback and will stay here for a few months..I don't need a stupid driver update destroying my card when it works perfectly fine now.